Automatic burr holder



JUHC 4, l929 s. METRICK 5T .AL

AUTOMATIC BURR HOLDER Filed Feb, 9, 1928 IQ/XQLNTORS THIENE? Patentecl`lime 4, 1929.1

umriso4 sr.

anroimrrc BURR Hernan.

. applicati@ mefirebruaiy e; 192s. seria-1 No. 253,008.

r This invention relates to a machineror the maintenance, selectivelydispens.ii-ig,4 and selectively iling or dental burrs or-s'iin-ilfararticles. y Heretofore, dent-al lou-rrs Vwere general- 'lykept in a perforatedlolocl, vandas the ivorl progressed the operatorpulled out tliedesired': n

vhead '17 fof the, trigger that carries al relier burr and reinsertedithaclr yupon completion or' the' Work. Astlie required burrs comprise alarge variety and each of therburrs is general-ly sold in a set of sixthe -lourr-lilock involves a confused'inass ofheter-ogeneous buris, someof which may he too A,dull for-effective .use While others of the sameset' may' liave'ample sharpness, and considerable time 'and labor isconsumed in vselecting` Jehe desired burr during Work. "This v'conditionis further-A more productive of'eyejstrain -iii'picking'out I thedesired burr from'tlie confusedsituation, `Vand causing pain to thevpatient throughr the possible choice of'a ,dullhurix Y The principalobj ect of the invention, there# fore, is toremedy they abovefniontioneddis-'1 advantages, and-to provide an efilicient andv improved machinewhich will inaintainthe sets of burrs in definite location, which willautomatically select the desired 'burr hy dialing, whichvvillan-tomatically separate the AinsoA l machine.

Fig'. 2 isa Aplan View ol' the machine shogvvn'V CII dividiial burr fromits set and deliverit, and` which will permit, canse, ,and compel theproper refiling'or the used burr into its set,

biirrs of each set.

v` Gther objects and ac lvantages Y-v'vill herein# after appear. K Inthe accompanying drawingae" Fig'.y l shows a general Aelevation '0 isformed a ring S provided Vwith la 4sei-ies of' y radial slots orchannels 9, each of which rserves as a keeper fora set lO of loiiris 1lcom' V'prising sixV in number, the various keepers 9 serving for-'themaintenance of ythe various sets oflourrs required for t-heavork.tralfcore' l2, secured to Vthe Stationary shaft 5, and a walll,lormiiigpart ofthe casing 3, 'together 'serve gto close the ends cfr theshan L selected -dial designation iE29 in coordination fi ther yinoiunted a trigger '15,' Whic'hipasses through the 5 and'is Surroundedby Jav spring 16 thatliears against said and against a 18. Said rollernormally tends to lodge lin a siletilQ of the 8 and' to'pres's the burr1l .lin'contaot therewith, whereby, Sloecauseof'll the 'Widtli of Itheslot being approxi-mately equal.'

18 `nerinally .tends lto .ejectthe-sixthor re` 'motestbufrr 1lfromt'hepartioiilarkeeper 9 -Whii-cflilat any time may lhe set inalignment :li-eievith. l' l i 'To the-base -2 is securedanotiliervertical to vthe thickness-.of the- 2bu-ri1-shank, tliei rolleri i Vsli-att 2() upenywhiehis `rotatably mounted a cylinder 22,-loyVmeans cfa slot 23 in s'leeve-21 @a sli-afrik 27, and -a knurled head Q8.Upon the dialing' .disk 26 is -pri-nted a seriesof pictures er other.designations 29 corresponding -to the vfarious sets ...of bur-rsearrfied by the seriesof 'keepers and these designations co` operatewith a stationary marker() located upon -a rim'SlY formingpartolf'tliegoasi-n'g3.,v so as to provide-roi a uniform Wear of all the AyThe sleeve 2l 4carries a gear 32 which meshes turn-table` 7accordingly, and setting -of'any With 'the mar-ker SO-aligns thecorresponding set 1.0 of burrs '1l with the ifoliler 18., Vwhich roller`forms par-t of: an ejecting device, as

l hereinabove referred .t0 and as vvill'h'e V further The' machine l lisprovidedw'vith' a. base 2,. a casing 8 for the Vlower par-t of -tliemachine i secured to the ,hase 2,'and a removable casing 4t `for the,upper part of the machine. To' the' by meansot-a pin S'lpass'ingtherethrough 'andthrough.a vertical slotf formed in thev shaft, and ahead 3'? orsaid sleeve'i-s located lwithin thecylinder329l fand,engageslan interior annular led-ge '38 formed: on said cvlin`-` Vand asetisere-w24,1'1and -t'o-tflie cylinder 22 ifsg der. A sp-r-ing) surrounding theshaftvQO E rlbearsconstantly' againstthe sleeve 34 andv against the.bottom of aQCQIUnterbOre 40 VA torn'ied in -tlierotaitahle sleeve 2l,and *this `spring thus "normally'- maintains 'the latter yto-:geth'erwith the cylindei-QQ Land knob 25 in* the 'elevated positionshovviivin'lig. land a v tical lstroke fmay -lbe imparted to theseafeeordanee with the limitations of 43 being secured to I*said portionto maintainV the turret on the shaft;v Said turret is provided with anapron 44 which suirouiids the sleeve 34 and permits the latter to slidethereinto andout therefrom, as the knob25A is `depressed and released.`Tlieturret 41'is in peripheralA contact with the .keeper-ring 8, and

- the'bottom surfacethereof is in contact with a sill 45forniing part ofthe frame 4. l In Vthe periphery of the turret- 41 is formed averticalpocket 46, Fig. 2, which is adaptedto receive theA shankv of any one of.tlieburrs 11. Both'terminals of the guide-pin 35 protrude throughoppositely configurated cam-slots47 formed inthe apron 44, whereby upon'depression of the dial knob 25 lthe'pin 35 coactiiig witlisaid camislotsyimparts apartial y rotation to the. turretv 41Ifromrthe posit-ion yshown by the location of the fpocket 46 in` Fig. 2 to aposition whereinsaid pocket is brouglitto registration with the peripheral icontact-point of turret 41 and keeper-riiig 8 that shown in Fig. 2.-Normallyth'efroller 18 n and hence with the-burr-set 10 which is at thetime under -pressure by the roller 18.

- Uponrelease of the dial-knob 25 an opposite partialrrotationis-imparted to theturret 41 from the aforesaid registration position topresses against' the nearest burr 11 of the y 41.l Then the'turret 41 isturned bythe de-1 pression of the dial-knob 25, to bring, the

' .to the user. During thispassage of the se- `lecte'd burrit isretained in the pocket 46by 1 burr-set which is in registry therewith,and, 40.

through the six burrs of the set, presses the final burr against theperiphery of the turret pocket 46 thereof in registry withvtlieburrs'et, the final burr 11 of the set is ejected by the pressure-roller18 from its keeper 9,

through a gatesopening 48 in thegburr-retaining wall 13, and into thepocket 46; and when the knob 25 is release-d the turret is returned'toits initial position, and in doing'so the pocket l46 carries the'ejected burr from V its lset to theposition shown by tlie locationzofkthe pocketi'n `Fig. 2, whereatfit is delivered fthe klower terminalthereof resting upon the sill and a block 49, forming part lof thekcasing 3closing the open side of the pocket. A gear 50, secui'ed to theknob 25 underneath the dial 26,;meshes Vwith an Velongated tooth Y 51,secured to the casing 3, during the depression and elevationl of thedial-knob 25 and the actuation of the turret 41 for lreceptionanddeliv'ery of the selected burr, and by this meaigis thecorresponding` settings of the sevlection dial and keeper-riiigS areeffectively preserved during this operation of the niachine.

To the trigger 15 is liingediat'r52 a link 53 the upper end of which,rests against the shaft 5, and upon the upper end of the shaft 5 'istelescopically mounted a hollow handle p 54 having an operating knob 55,which .haii- A dle rests against' the terminal of saidlink.

Upon depression of the handle 54its inovement is transmitted throughlink 53 to the trigger 15xaiid causes thelatterto lbe retracted with itsroller- 18 contrary to thepressureof spring 16, andwhen said handle isreleased `vthe trigger andA roller return to normal plosition.

To the core'12 is secured an upright inclinedwchute` 56. Jhen useoftlie'selected burr has been completed it may be refiled and returnedto its ownset by slipping it Vinto the chute 56, which causes ittolandupon the roller 18, and. then .pressing rand `releasing" the lmob 55. Asthe knob 55 is depressed the roller 18 is retracted and the jburr isthereby permitted VVto drop `into its trigger 9 at the,

rear-of the second burr of. its set, and asl the knob is released theroller18 restores its pres# sure againstthe returned burr and the. enfvtire set.. v

It willV be evident that when selecting a .Y burr with th'ismachine itmerely requires setting ofthe dial to the designation co'rre-` Yspondingto such burr, and then depressing the dial for deliveringtheburr. vFor reiling the burr it requires mereinsertionthereof in Itwill be alsoevident that no error in refiling can occur with thismachine because, the remaining burrkeepers 9 being completely filledwith their sets,fit willcoinpel theburr to be reled only inthe set :inwhich it is Amissing and at the rearmost burrfrom the 4turret 41, and asaffurther consequence of this operation a uniform use andY wear of allthe burrs of eacliset is compelled. `AIt will be also noted'. thatfailure ,to properly refile a" used burr, as may occurtlirough error,will prevent this machine from further delivering a'burr out of thesamev set, and willv thereby apprise lthe user of the necessity rofretiling the formerly used burr-back to its own set.

Variations may be resorted to within the scope ofthe invention, andportions of the improvements may be used without others.

Having thus described our invention, we

combinationl of a series of burr 1. The

izo y keepers, means todiscliarge any one of the p burrs from itskeeper, means to actuate said series t0 align any onejofsaidkeepers withsaid discharging means,and means to deliver c the discharged burr. Y Y

2. The combination ofl a seriesof burr keep'- ers, means to dischargeanyone ofthe burrs from its keeper, means to actuate said series toalign any one of said keepersl with said the chute and depression of theknob 55. '7.100. l

discharging means, means to deliver the discharged burr, and means tovdirect back the rdischarged burr to its keeper.

The combination of a series of. vburr keepers, each of saidkeepers beingadapted to i hold a plurality of burrs, means to discharge one oi" theplurality of 'burrs from any one of said keepers, `means to actuate saidseries to align any one of said keepers with said discharging means, andmeans tofdeliverfthe f discharged burr. 4. The combination of tol hold aplurality of burrs, means to discharge Vone 'of the plurality of burrs'fromany` lone of said keepers, means to actuate said 'gi dischargedb`uir, an'd means to directxback the'A 2Qdischarged burr to its keeperat the rear of series'to align anyone of said keepers with saiddischarging means, means to deliver the the remaining burrs held by saidkeeper.

5. The combination of a series of burr keep- 'ers-,each of said keepersbeing adapted to hold 'sa plurality of burrs, means to discharge one ofthe plurality of burrsfrom any one of said keepers, means to actuatesaid series to align any one of said keepers With said rdischargingmeans, means to `deliver .the discharged'burr, and means todirectbackthe discharged burr to its keeper and against said discharging' means. iy

6. The combination of a series of burrkeepers, means to discharge anyone of the burrs from its keeper, a' dial having designations for thebnrrsadapted to be set relatively to a fixed point for selection of oneof the burrs, means to transmit the motion of said dial vto said seriestoahgn the corresponding burr and keeperfwith said discharging means,and means t0 deliver'the discharged burr.

*7. The combination of a series of burr keep-V f ers, means to dischargeany one ofthe burrs l :from its keeper,'a dialhavingdesignationsfor theburrs adapted Vto be set relativelyto a iXed member for selection of oneof the burrs, and' means to transmit the motionof said Vdial tosaid-series to align the-corresponding burr` and keeper WithV saiddischarging means; l 8.' rlhe combination of a'seriesof burrkeepers,.means to discharge any 'one 'of the burrs from its keeper, adial having' designations s for the burrs adapted to be set or'selectionof one of the burrs, means to transmit the'motion of said dial to saidseries to align the correspending burr and. keeper with saiddischarg-Aing means, means4 to deliver the discharged burr, and means to directback the discharged burr to its keeper. s o 9. The Vcombination of a'series roi' burr' keepers, each oi-said keepers being adapted to hold aplurality ot burrs, means to discharge' one of the plurality of burrsfrom any one of said keepers, a 'dial having designations for the burrsadapted to be set for selection of2 one ofthe burrameans to transmit the'motion of a series Vofburr' keepers, each of said keepers being adaptedf said dial to'isaid` series to align the corre? 1 spending burr andkeeper with said discharg- 10; The combination ing means, landnieans ltodelive'rthe dis- O a seriesof rburr keepers, each' ofsaid keepers beingadaptedv to lhold apluralityV of burrs',rmeans to discharge one of theplurality of burrs fromany e one of said keepers,a dial havingdesignations.

*for theburrsadapted to'b'e set'for selection of one of theburrs',andmeans to transmit the motion of said dialto said seriesto align thecorresponding burr and keeper With said disi 'charging means. e

tion of said dial tosaidseries toali'gn the cor- Vresponding,burr andkeeper kwith said dis charging means, means 'to deliver thev dischargedvburr, and means to'd-irectV vback the discharged burr'to its keeper atvthe rear ofv the remaining burrs heldV by said keeper.

12. The combination of a series of burr keep? i ers, each of saidkeepersfbeing adaptedto hold a plurality'of burrs, mean'sto dischargeoneof the plurality of lburrs from any One-of said keepers, a dialkhavingdesignations,for the...

burrs adapted to setterselection` of one of. the:v burrs, means totransmit thejm'otion of' said dial to said series to alignthe-corresponding burrand keeper with said discharging means, meansto'deliver the discharged burr, and means to directl back the dischargedburr to' its keeper and againstsaid*dischargingv means.'

13. The combinatioiiof a turn-table li "a plurality of burrkeepersffmea'ns* to` dis-v charge any one'of the burrs froni'itskeeper,7^ l i :af rotatable dial havingdesignations for the. Y yburrsadaptedjtobe set for selection loie-one of the burrs,means to transmitthe rotation'ofliI said dial to said turn-tabletoV align theseA vlectedburr and keeper withv said discharging meansr to deliver the dischargedl kburr.

714C. The combination of "a turn -table having la plurality ofl burrkeepers, means'grto dis# charge any one of the burrs fiomits keeperfarotatable-V diall having designations *for the burrs adapted to be setfor selection of oneof Athe burrs, meansto transmit thefrotationof Y'said dial to'saidturn-tableto align the selected burr and keeper withsaid discharging means, meansto vdeliver the dischargedburr,

and means to direct back the discharged burr to its keeper.

l5. The combination oda turn-table having 'a plurality of burr keepers,each ofsaid keep-l ers being adaptedto hold a plurality of burrs n v 1 Ymeans to dischargefone of the pluralitye Cil burrs y'fromfanyyone ofsaid keepers, o a 'rotatl"ablewdial havingdesignations for thebnrrsVIV'adaptekltobe set forfselection of ,one of the burrs, means totransmit the rotationloffsaid dial to said turn-table-to align theselected q b urrs and keeper with said discharging ineens, and means todeliver' the ydischarged burr.; .i ,Y 1 16. Theeombinationofn,turn-tablehaving a plurality of burr keepers, each Vofsaid :keep- 1versbeingfad apted to Yhold a plurality of ..burrs, meansto discharge one of the plurality of i burrs from any 4oneio-isaidkeepers, a rotatable dial havingdesignations for the burrs adapted totheset for selection of one of the burrs, *ofmeans to -tralnsmit therotation of `said y dialto saidftarn-,table to 'align -theselected fburrs fand Xkeeper with said Y.discharging aneans, means toldel-iver thedischarged tbnrr, and :means todirect back .the v.discharged vburr toits keeper at the rear-:ofthe remaining burrs i17 The `eombination of'aser-ies of burr i `keepers,:each lof said keepers `being adapted to*hold arplurality orf'burrs, means to discharge one ofthe pluralityofburrs .from any .one of said keepers,-a dialhaving designations for yVtheJourrsadapted to be set for selection of one 'bu'rrs, me'ans totransmit the rotation ofsaid dialY to said turn-tableto Aalign :theselected bnrrs 'and' keeper -W-ith saidl discharging means, said dialbeing shiftableron its-axis, andineans to 'deliver` the discharged burrbeing actuatedby saidjshi'lting o fthefdial.v y

19. Y The combination of a 'turn-,table:having a vplurality of .radiallydisposed burr keepers, each Vofsaidkeepers being adaptedto' held a setof buitrfs, eating means for said bnrrs located. Within -saidkturn-table', ,a rotatable dial having-design ations for the burisadapted to f beset. for selection of lone of the burrs, means 55V totransmit the rotation of :said dial =to .said turn-table-to alignltheselc-:cted burrs and keeper with said discharging means, said diajlbeing shii'table on its axis, and means todeliver the discharged'burrbeing Aactuatedby said shifting of the dial.

20. Thec0mbinat1on of a series Iof burr keepers, veach of said-keepersbeing adapted yto hold a plurality of burrs, means Vto Vdischarge one ofthe pluralityofbur-rsfrom fany eneof'sad--keepersedmlihavingdesignations gfor the `burrs adaptedrtoV be setior selection ot :one oftheburrs, meanstotransmit the lmotion of said dia-lto said series toalignthe corlresponding vburn-andkeeper .With said discharging means,-said dial being yshiftable on :its axis, andmeans actuated bythedepres- --sion of-said dialtoperymit discharge of the :burr fromthe-aligned .keeper and being actuatedby release voi the dialto deliverthe re- E-ieasedburr.

21. Therconibination of ,a series of ,burr

tol vhold a :plurality of burrs, means Ito dis- L ,keepers,geaeh retsaid keepers beingiadapted `lectien of` one 4oi' ,the burrs, means totransmitk the motion .of [saidl dial to said seriesto laligntheleorrespondi-ng bu'rrland keeper with dsaid-'dischargingfmeans,-saiddial being shiftableonitsaiiis, meansactuated by the depression of saiddial topermit discharge of the Iburr'roinathe aligned ykeeper ,and being actu-V l I ated vby release of .thedialfto deliver the re-A 'leased-bnrr, and means to direct backthedischarged burr togits keeper at the rear of the .remaining burrs heldby saidkeeper.

22. The combination of'a turntable-having afplurality oit'` radiallydisposedburr keepers,each ofL said keepers 'beingadapted to hold a setoiburrs, ejecting means for :said bur-rs :located Within said .turn-table,Aa :rotatable dial having designations for .the .burrs adapted to be setforA selection of. one ofthe burrs, means to transmit therotation yofsaiddial to jsa'id turn-table to align theselected burrs" 1and keeperwith saidv discharging means, and `means actuated by the depression yofsaidqdial to permit ejectionzfof `the-burr romvthe faligne'd keeper. andbeing actuated bytheirele'ase v.of the dialto deliver thereleasedburr..A Y f Y. 23. The combinationof a lturn-table having a plurality of.radially disposed burr keepers, each fof said keepers jbeing adapted toAhold a set of burns, ecting means ier said `burrs `located :Withinasaidturn-table, fa Arotatable dial havingdesignationsfor the burrs adapted,to be setv-forrselection of Yone of fthe fburrs, means =to transmittherotation kof said dial tosaid `turn-table to align-,the-selected burrsand keeper with said Vdischarging means, means actuated .by the,ldepression :of-said dial to permit ejection of the Aburr from thealigned keepenan'dfbeing actuated by the. re-V lease of the dialto'deliveiythe released burr, and means todirect back the'discharged burrtoits keeper at the rear of`V the yremaining b'urrs .held bysaid keeper.,I Y Y 24. The combin atien of aturn-.table having a plurality of.radially disposed burr. keepers, .each of said keepers being adapted tohold a set orf'buri'sfe-jecting lmeans for said 'bui-rs located Withinsaid {turn-table, a rotatable `diallnwing desi-gnatiensfer .the burnsadaptedto be set for selection of one of said keepers, means to transmitthe rotation of s aid dial to said turn-table'to align the selectedVykeeper with said ejecting means, said vdial being shitable on its aXis,a spring normally )ressinff said'dialfu Wardl and a device beb 7 ingactuated by the depression of said dial `to permit said ejectin'g meansto discharge a burr from the selected keeper and being actuated by therelease of the dial'to ldeliver the released burr. f Y A v 25. Thecombination o f aturn-tablehaving f a plurality of radially Vdisposedburr keepers,

each oi' said keepers beingadaptedto.hold a set of burrs, ejectmgmeansfor said burrs located Within said turn-table, a rotatable ,dialVhavingdesignations for the burrs adapted tol be set for selection of oneoi said keepers.

' means to transmit the rotation of said dial and means to reinsert thedischarged burr into Y 26. The combination of ak turnlftablehavvhavingdesignations for` the 'burrs adapted to be set for selectionofoneof saidkeepers, 35

means to transmit the rotation of saiddialy to said turn-table to alignthe selected keeper With saidV ejecting means, said dial being shift#able on its axis, a spring normally pressing said dial upwardly, adevice being actuated selected keeper and'being actuated by the releaseoi'4 thedial to deliver' the released burr, means to vdirect back thedischarged burr ,to its keeper, and means to actuate said ej ectingmeans to permit reinsertion of the discharged burr into its keeper.

Signed at the city of yNew York, in thev y 5o county of New York, andState of New York,-r

`this 6th day of February, A. D. 1928. l soLoMoN Marnier;

VILLIAM AVSTREIH.

f3@ ing a plurality of burr keepers, each` of said 'keepers beingadaptedto hold a s et of burrs,. f ejecting means for said burrs, a rotatabledial x Y 4oV y Vby the depression of said dial to permit said ejectingmeans to discharge a burr from the.

